The design of die structure has much influence on shape dimension and precision of the formed crank-arm with a non elliptical section.
对于非椭圆截面曲臂的大型曲轴，其模具结构设计对曲轴成形后的形状尺寸精度影响极大。
The design of die structure has much influence on shape dimension and precision of the formed crank-arm with a non elliptical section.
对于非椭圆截面曲臂的大型曲轴，其模具结构设计对曲轴成形后的形状尺寸精度影响极大。
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